import dayjs from 'dayjs'
import config from './config.json'
import _ from 'lodash'
export default function(){
  const num = 0;
  let msg = 'rollup'
  document.write(msg);
  console.log(
    dayjs().format(),msg,config.title
  )
  const arr = _.concat([1, 2], 3, 4, [5]);
   console.log(arr);
}
